[libvirt] [PATCH] Fix use of uninitialized memory when releasing PCI slots
Eric Blake
eblake at redhat.com
Thu Jun 30 14:17:26 UTC 2011
On 06/30/2011 08:09 AM, Daniel P. Berrange wrote:
> The 'function' field in the PCI address was not correctly
> initialized, so it was building the wrong address address
> string and so not removing all functions from the in use
> list.
>
> * src/qemu/qemu_command.c: Fix initialization of PCI function
> ---
> src/qemu/qemu_command.c | 6 +++---
> 1 files changed, 3 insertions(+), 3 deletions(-)
>
> + unsigned int *function = &dev.addr.pci.function;
>
> dev.addr.pci.domain = 0;
> dev.addr.pci.bus = 0;
> dev.addr.pci.slot = slot;
>
> - for (function = 0; function <= QEMU_PCI_ADDRESS_LAST_FUNCTION; function++) {
> + for (*function = 0; *function <= QEMU_PCI_ADDRESS_LAST_FUNCTION; (*function)++) {
> addr = qemuPCIAddressAsString(&dev);
> if (!addr)
> return -1;
> @@ -950,7 +950,7 @@ int qemuDomainPCIAddressReleaseSlot(qemuDomainPCIAddressSetPtr addrs, int slot)
>
> VIR_FREE(addr);
>
> - if (qemuDomainPCIAddressReleaseFunction(addrs, slot, function) < 0)
> + if (qemuDomainPCIAddressReleaseFunction(addrs, slot, *function) < 0)
ACK.
--
Eric Blake eblake at redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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